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| • |
The number of
collisions that can be seen by a node over a
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certain period
can indicate the node mobility or medium usage
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condition more
precisely than other parameters
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The faster nodes
move, the larger number of collisions can be
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observed by nodes
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The larger number
of collision happens, the more backoff periods
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are and less
medium usage is detected
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Method
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Nodes measure
the medium usage and number of collisions over a
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certain period
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Based on the
number of collisions, a suitable threshold is set
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